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authorWim <wim@42.be>2016-04-10 23:39:38 +0200
committerWim <wim@42.be>2016-04-10 23:39:38 +0200
commitde4c7804101a47a01d0c9b88ea34d2b153e2b6b9 (patch)
treefa379bc2e706951a913e0c7009d9906e42363655 /vendor/github.com/pborman/uuid/sql.go
parent6b18257185b1830bd2eff83fae30bdd2055f78b0 (diff)
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Vendor libs
Diffstat (limited to 'vendor/github.com/pborman/uuid/sql.go')
-rw-r--r--vendor/github.com/pborman/uuid/sql.go66
1 files changed, 66 insertions, 0 deletions
diff --git a/vendor/github.com/pborman/uuid/sql.go b/vendor/github.com/pborman/uuid/sql.go
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+++ b/vendor/github.com/pborman/uuid/sql.go
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+// Copyright 2015 Google Inc. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package uuid
+
+import (
+ "database/sql/driver"
+ "errors"
+ "fmt"
+)
+
+// Scan implements sql.Scanner so UUIDs can be read from databases transparently
+// Currently, database types that map to string and []byte are supported. Please
+// consult database-specific driver documentation for matching types.
+func (uuid *UUID) Scan(src interface{}) error {
+ switch src.(type) {
+ case string:
+ // if an empty UUID comes from a table, we return a null UUID
+ if src.(string) == "" {
+ return nil
+ }
+
+ // see uuid.Parse for required string format
+ parsed := Parse(src.(string))
+
+ if parsed == nil {
+ return errors.New("Scan: invalid UUID format")
+ }
+
+ *uuid = parsed
+ case []byte:
+ b := src.([]byte)
+
+ // if an empty UUID comes from a table, we return a null UUID
+ if len(b) == 0 {
+ return nil
+ }
+
+ // assumes a simple slice of bytes if 16 bytes
+ // otherwise attempts to parse
+ if len(b) == 16 {
+ *uuid = UUID(b)
+ } else {
+ u := Parse(string(b))
+
+ if u == nil {
+ return errors.New("Scan: invalid UUID format")
+ }
+
+ *uuid = u
+ }
+
+ default:
+ return fmt.Errorf("Scan: unable to scan type %T into UUID", src)
+ }
+
+ return nil
+}
+
+// Value implements sql.Valuer so that UUIDs can be written to databases
+// transparently. Currently, UUIDs map to strings. Please consult
+// database-specific driver documentation for matching types.
+func (uuid UUID) Value() (driver.Value, error) {
+ return uuid.String(), nil
+}